A steel cord welded point breaking force manual detection device

Abstract

The application relates to the field of steel cord detection equipment, in particular to a steel cord welding point breaking force manual detection device, which comprises a workbench, a positioning sliding rail, a sliding buckle plate, a bearing box, a tension meter, a first clamping jaw, a connecting strip plate, a second clamping jaw, a supporting vertical plate, a positioning long box, a recording plate, a limiting tooth, two symmetrical sliding mark pens arranged in the bearing box and a locking plug plate, a power mechanism for driving the bearing box to move and a brake mechanism for limiting the movement of the bearing box, the power mechanism is provided with a pulling output end, the pulling output end is connected with the bearing box, the brake mechanism is provided with a transverse output end, the transverse output end is used for driving the locking plug plate and the mark pen to extend or retract, and the first clamping jaw and the second clamping jaw are used for clamping a steel cord body. The device can quickly realize the breaking force detection of the steel cord welding point and improve the detection efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steel cord detection equipment, in particular to a kind of steel cord welding point breaking force manual detection device. BACKGROUND

[0002] Steel cord is the key skeleton material of rubber products such as tire, and its welding point quality directly affects product performance. Through breaking force detection, the strength of the welding point can be ensured to meet the industry standard or enterprise internal standard. The existing detection method is manually stretched by employees, and the firmness of the welding point after welding is determined by hand feeling. Due to individual differences, the tension used for measurement varies, and it does not have quantifiable and observable properties, leading to inconsistent detection results of the welding point, and many unqualified products are easily produced. Therefore, the quality of the product cannot be guaranteed. Another method is to use a tensile instrument in the laboratory for testing, which is high in cost and has complicated operation steps and low efficiency. Therefore, a new detection device is needed to solve the above problems, which can quickly detect breaking force and simplify the detection steps and reduce the detection cost. SUMMARY

[0003] Therefore, it is necessary to provide a kind of steel cord welding point breaking force manual detection device to solve the problems in the prior art.

[0004] To solve the problems in the prior art, the technical scheme adopted by the present application is as follows: a kind of steel cord welding point breaking force manual detection device, including workbench, two positioning slides fixedly arranged on the workbench in symmetrical state, slidingly arranged on each positioning slide sliding buckle, fixedly arranged on the two sliding buckles bearing box, fixedly arranged on the side of bearing box and fixedly connected with workbench tension meter, fixedly arranged on the first jaw of tension meter, elastically slidingly arranged in the bearing box connecting strip, fixedly arranged on the second jaw of connecting strip, fixedly arranged on the side of each positioning slide support vertical plate, fixedly arranged on the positioning long box of support vertical plate, fixedly arranged on the top of positioning long box recording plate, a plurality of limit teeth are arranged at equal intervals along the length direction of positioning long box, two symmetrical slidingly arranged in the bearing box marker pen and locking plug, power mechanism for driving bearing box to move and brake mechanism for limiting the movement of bearing box, power mechanism has pull output end, pull output end is connected with bearing box, brake mechanism has horizontal shift output end, horizontal shift output end is used to drive locking plug and marker pen to extend or retract, first jaw and second jaw are used to clamp steel cord body.

[0005] Further, the power mechanism further comprises a wheel frame fixedly arranged on the bearing box away from the second clamping jaw, a winding wheel rotatably arranged on the wheel frame, a pull rope wound on the winding wheel, a bearing buckle fixedly arranged on the bearing box, and a movable box fixedly arranged on the bearing buckle, one end of the pull rope is wound on the winding wheel, and the other end is connected with the movable box.

[0006] Further, a limiting groove is formed in the bottom of the bearing box, and an abutment block is elastically and slidably arranged in the limiting groove.

[0007] Further, the movable box is a pulling output end of the power mechanism.

[0008] Further, a reset tension spring is fixedly arranged on the inner wall of the bearing box away from the second clamping jaw, an installation hole is formed in the side of the abutment block close to the reset tension spring, one end of the reset tension spring is fixedly connected with the inner wall of the bearing box, and the other end is fixedly connected with the bottom of the installation hole.

[0009] Further, the brake mechanism further comprises two transmission gears arranged in a symmetrical state on both sides of the limiting groove, two impact inclined plates fixedly arranged on both sides of the abutment block, a transmission rack and a transfer rack arranged on both sides of each transmission gear and meshing with the transmission gear, a bearing tube fixedly arranged on the side of each transmission rack away from the limiting groove, and a bearing groove formed on the side of each transfer rack away from the limiting groove, the marker pen is elastically and slidably arranged in the bearing tube, the locking plate is elastically and slidably arranged in the bearing groove, the impact inclined plates are respectively in contact with one end of the transmission rack away from the bearing tube, and the transmission gears are rotatably connected with the bottom of the bearing box through torsional springs.

[0010] Further, the transmission rack and the transfer rack are horizontal moving output ends of the brake mechanism.

[0011] Further, the power mechanism further comprises a bearing table arranged on the side of the bearing box away from the second clamping jaw and fixedly connected with the workbench, and a fixed box fixedly arranged on the bearing table, the fixed box and the movable box are internally provided with a pulley block, and the pull rope is wound on the winding wheel through the pulley block.

[0012] Further, the power mechanism further comprises a bearing shaft coaxially and fixedly arranged on the winding wheel, a worm wheel coaxially and fixedly arranged on the side of the bearing shaft away from the winding wheel, a worm rotatably arranged on the workbench through a shaft seat, a transmission box arranged on one end of the worm and fixedly connected with the workbench, and an operation handle arranged on the transmission box, the transmission box is internally provided with a reversing bevel gear set, the worm is coaxially and fixedly connected with one bevel gear in the transmission box, the operation handle is coaxially and fixedly connected with another bevel gear in the transmission box, and the worm wheel is meshed with the worm.

[0013] Further, the brake mechanism further comprises a limiting box fixedly arranged on the adapter rack near the locking insert plate, a touch insert rod slidingly arranged in the limiting box, two limiting rods symmetrically arranged on the bearing box away from the second clamping jaw, an elastic slidingly arranged on the two limiting rods, and a touch inclined slot arranged on each locking insert plate, one end of the touch insert rod near the locking insert plate is in contact with the touch inclined slot, and the other end of the touch insert rod away from the locking insert plate is in sliding connection with the touch horizontal plate.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] Firstly, the device can quickly detect the breaking force of the steel cord welding point, uses a mechanical structure to stretch the steel cord body, and can intuitively display the distance of the steel cord body stretched by tension on the recording plate in the form of a line during detection, facilitating the staff to record and improving the detection accuracy.

[0016] Secondly, the device can automatically lock the bearing box again after the steel cord body is pulled off by setting the brake mechanism, preventing the bearing box from moving quickly after the steel cord body is pulled off, damaging the equipment, and prolonging the service life of the equipment.

[0017] Thirdly, the device uses the principle of labor-saving of the movable pulley to realize the manual operation of the worker to pull off the steel cord body in a pure mechanical way, reduces the detection cost, and the pure mechanical structure can make the detection test can be carried out anywhere outside the laboratory, improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective structural schematic diagram of the embodiment;

[0019] Figure 2 is a top view of the embodiment;

[0020] Figure 3 is a perspective structural schematic diagram of the bearing block of the embodiment;

[0021] Figure 4 is a perspective structural exploded schematic diagram of the locking insert plate and the limiting tooth of the embodiment;

[0022] Figure 5 is a perspective structural schematic diagram of the bearing box of the embodiment;

[0023] Figure 6 is a perspective structural schematic diagram of the winding wheel of the embodiment;

[0024] Figure 7 is a perspective structural schematic diagram of the steel cord body when it is just stretched and tightened;

[0025] Figure 8It is a stereoscopic structure schematic view at the breaking force detection start time of the embodiment.

[0026] The figure label is: 1, workbench; 2, positioning slide rail; 3, tension meter; 4, first clamping jaw; 5, steel cord body; 6, bearing box; 7, sliding buckle plate; 8, connecting strip plate; 9, second clamping jaw; 10, limiting groove; 11, supporting block; 12, mounting hole; 13, reset tension spring; 14, collision inclined plate; 15, transmission rack; 16, bearing tube; 17, marker pen; 18, adapter rack; 20, locking plugboard; 21, collision inclined slot; 22, limiting box; 23, touch plug rod; 24, transmission gear; 25, limiting rod; 26, dialing cross plate; 27, wheel carrier; 28, winding wheel; 29, bearing shaft; 30, worm gear; 31, transmission box; 33, operation handle; 34, bearing table; 35, fixed box; 36, pull rope; 37, bearing buckle plate; 38, movable box; 39, supporting vertical plate; 40, positioning long box; 41, limiting tooth; 42, recording plate. DETAILED DESCRIPTION

[0027] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in conjunction with the drawings and specific embodiments.

[0028] Reference Figures 1 to 8 :

[0029] A steel cord welding point breaking force manual detection device, comprising a workbench 1, two positioning slide rails 2 fixedly arranged in a symmetrical state on the workbench 1, a sliding buckle plate 7 slidingly arranged on each positioning slide rail 2, a bearing box 6 fixedly arranged on the two sliding buckle plates 7, a tension meter 3 fixedly arranged on one side of the bearing box 6 and fixedly connected with the workbench 1, a first clamping jaw 4 fixedly arranged on the tension meter 3, a connecting strip plate 8 elastically slidingly arranged in the bearing box 6, a second clamping jaw 9 fixedly arranged on the connecting strip plate 8, a supporting vertical plate 39 fixedly arranged on the side of each positioning slide rail 2, a positioning long box 40 fixedly arranged on the top of the supporting vertical plate 39, a recording plate 42 fixedly arranged on the top of the positioning long box 40, a plurality of limiting teeth 41 arranged at equal intervals along the length direction of the positioning long box 40, a marker pen 17 and a locking plugboard 20 slidingly arranged in the bearing box 6 in a symmetrical manner, a power mechanism for driving the bearing box 6 to move and a brake mechanism for limiting the movement of the bearing box 6, the power mechanism having a pulling output end connected with the bearing box 6, the brake mechanism having a horizontal moving output end for driving the locking plugboard 20 and the marker pen 17 to extend or retract, the first clamping jaw 4 and the second clamping jaw 9 for clamping the steel cord body 5.

[0030] The device, when in operation, clamps the steel cord body 5, which needs to be tested for breaking force of the welding point, to the first clamping jaw 4 and the second clamping jaw 9, then the dynamometer 3 drives the first clamping jaw 4 to move, so that the clamped steel cord body 5 is taut (it is to be noted that the dynamometer 3 is provided with an extension actuator for pulling the first clamping jaw 4 to move), then the pulling output end of the power mechanism drives the bearing box 6 to move, the bearing box 6 is supported to slide on the positioning slide rail 2 through the sliding buckle plate 7, then the transverse output end of the brake mechanism pulls out the two locking plug-in plates 20 from the limiting teeth 41, and at the same time, the two marking pens 17 are extended from the bearing box 6, so that the marking pens 17 contact the recording plate 42, then the pulling output end continues to pull the bearing box 6 to slide on the positioning slide rail 2, until the connecting strip plate 8 hard contacts with the side wall of the bearing box 6, so that the second clamping jaw 9 moves synchronously with the bearing box 6, until the steel cord body 5 is pulled off, in the process of pulling off, the bearing box 6 moves a certain distance on the positioning slide rail 2, so that the bearing box 6 can draw lines on the recording plate 42 with the marking pens 17, so that the displacement distance of the bearing box 6 can be directly displayed on the recording plate 42, and then the pulling force value displayed by the dynamometer 3, so that the staff can accurately record the experimental data, and when the steel cord body 5 is pulled off, the transverse output end of the brake mechanism is operated again to synchronously retract the two marking pens 17 into the bearing box 6, and the two locking plug-in plates 20 are inserted into the limiting teeth 41 again, so as to lock and position the bearing box 6, which is convenient for the staff to record the experimental data.

[0031] In order to show the detailed structure of the power mechanism, the following features are further provided:

[0032] The power mechanism further comprises a wheel frame 27 fixedly arranged on the side of the bearing box 6 away from the second clamping jaw 9, a winding wheel 28 rotatably arranged on the wheel frame 27, a pulling rope 36 wound on the winding wheel 28, a bearing buckle plate 37 fixedly arranged on the bearing box 6, and a movable box 38 fixedly arranged on the bearing buckle plate 37, one end of the pulling rope 36 is wound on the winding wheel 28, and the other end is connected with the movable box 38.

[0033] When the device is in operation, the winding wheel 28 rotates to tighten the pulling rope 36 (it is to be noted that the pulling rope 36 is a steel wire rope without elasticity, so as to ensure sufficient strength), then the pulling rope 36 drives the movable box 38 to move, and the movable box 38 moves to drive the bearing box 6 to slide on the positioning slide rail 2 through the bearing buckle plate 37.

[0034] In order to show the connection relationship between the bearing box 6 and the connecting strip plate 8, the following features are further provided:

[0035] A limiting groove 10 is formed in the bottom of the bearing box 6 (as shown in Figure 5As shown in the figure, the supporting block 11 is elastically slidably arranged in the limiting groove 10, and the supporting block 11 is fixedly connected with the connecting strip plate 8.

[0036] The movable box 38 is a pulling output end of the power mechanism.

[0037] In order to show how the supporting block 11 is elastically slidably arranged in the limiting groove 10, the following features are further provided:

[0038] The reset tension spring 13 is fixedly arranged on the inner wall of the carrying box 6 away from the second clamping jaw 9, and the mounting hole 12 is arranged on the side of the supporting block 11 close to the reset tension spring 13, one end of the reset tension spring 13 is fixedly connected with the inner wall of the carrying box 6, and the other end is fixedly connected with the bottom of the mounting hole 12.

[0039] Before starting the detection, the first clamping jaw 4 is driven to move by the telescopic actuator on the tension meter 3, the first clamping jaw 4 moves so that the steel cord body 5 is taut between the first clamping jaw 4 and the second clamping jaw 9, then the carrying box 6 is driven to move by the movable box 38, the relative movement occurs between the carrying box 6 and the supporting block 11, until the hard contact occurs between the connecting strip plate 8 and the inner wall of the carrying box 6, the carrying box 6 drives the connecting strip plate 8 to move synchronously, and then drives the second clamping jaw 9 to move, so as to realize the stretching of the steel cord body 5.

[0040] In order to show the detailed structure of the brake mechanism, the following features are further provided:

[0041] The brake mechanism further comprises two transmission gears 24 arranged in a symmetrical state on both sides of the limiting groove 10, two impact inclined plates 14 fixedly arranged on both sides of the supporting block 11, two transmission racks 15 arranged on both sides of each transmission gear 24 and engaged with the transmission gear 24, a transmission rack 15 and a transmission rack 15, a carrying pipe 16 fixedly arranged on the side away from the limiting groove 10 of each transmission rack 15, and a carrying groove 18 arranged on the side away from the limiting groove 10 of each transmission rack 18, a marker pen 17 elastically slidably arranged in the carrying pipe 16, a locking plate 20 elastically slidably arranged in the carrying groove, the impact inclined plate 14 respectively abuts against the end of the transmission rack 15 away from the carrying pipe 16, and the transmission gear 24 is rotatably connected with the bottom of the carrying box 6 through the torsion spring.

[0042] The transmission rack 15 and the transmission rack 18 are horizontal moving output ends of the brake mechanism.

[0043] When the device is running, the supporting block 11 drives the contact inclined plate 14 to move, the contact inclined plate 14 moves to contact the transmission rack 15, so that the two transmission racks 15 extend out of the bearing box 6, the transmission rack 15 extends out with the bearing tube 16, the bearing tube 16 moves with the marker pen 17, so that the marker pen 17 contacts the recording plate 42, when the transmission rack 15 is contacted by the contact inclined plate 14 and moves, the transmission rack 15 drives the transmission gear 24 to rotate, the transmission gear 24 drives the adapter rack 18 to move, so that the two adapter racks 18 are synchronously retracted into the bearing box 6, and the adapter rack 18 drives the locking plug plate 20 to be pulled out of the limiting tooth 41.

[0044] In order to show that the device can amplify the tension of the pull rope 36 on the movable box 38 when running, the following features are further provided:

[0045] The power mechanism further comprises a bearing table 34 arranged on the side of the bearing box 6 away from the second clamping jaw 9 and fixedly connected with the workbench 1, and a fixed box 35 fixedly arranged on the bearing table 34, and pulley blocks are arranged in the fixed box 35 and the movable box 38, and the pull rope 36 is wound on the winding wheel 28 through the pulley blocks.

[0046] When the device is running, the winding wheel 28 rotates to make the pull rope 36 wind, the pull rope 36 winds to drive the movable box 38 to move through the pulley blocks arranged in the movable box 38 and the fixed box 35 (here, the principle of labor-saving pulley block is referred to, the movable box 38 is equivalent to a movable pulley, and the fixed box 35 is equivalent to a fixed pulley), then the movement of the movable box 38 drives the bearing box 6 to slide on the positioning slide rail 2, and the steel cord body 5 is waited to be pulled off, when the steel cord body 5 is pulled off, the connecting strip plate 8 loses the tension of the steel cord body 5, then the reset tension spring 13 resets to drive the supporting block 11 to reset, the supporting block 11 resets to drive the connecting strip plate 8 to reset, when the supporting block 11 resets, the contact inclined plate 14 no longer produces a contact force with the transmission rack 15, then under the action of the torsional spring, the transmission gear 24 reverses to reset, drives the transmission rack 15 to retract and reset, and the adapter rack 18 to extend, the transmission rack 15 resets to make the marker pen 17 away from the recording plate 42, and the adapter rack 18 resets to make the locking plug plate 20 reinserted into the limiting tooth 41.

[0047] In order to show how the winding wheel 28 rotates, the following features are further provided:

[0048] The power mechanism further comprises a bearing shaft 29 coaxially fixed on the winding wheel 28, a worm wheel 30 coaxially fixed on the bearing shaft 29 away from the winding wheel 28, a worm 31 rotatably arranged on the workbench 1 through a shaft seat, a transmission box 32 arranged on one end of the worm 31 and fixedly connected with the workbench 1, and an operation handle 33 arranged on the transmission box 32, wherein a reversing bevel gear set is arranged in the transmission box 32, the worm 31 is coaxially fixed with one bevel gear in the transmission box 32, the operation handle 33 is coaxially fixed with another bevel gear in the transmission box 32, and the worm wheel 30 is engaged with the worm 31.

[0049] In the process of gradually tightening the steel cord body 5 between the first clamp jaw 4 and the second clamp jaw 9, the telescopic actuator on the tension meter 3 drives the first clamp jaw 4 to move, and the movement of the first clamp jaw 4 gradually causes the steel cord body 5 to be stretched and tightened, and in this process, the first clamp jaw 4 also drives the second clamp jaw 9 to move a certain distance through the steel cord body 5, so that the second clamp jaw 9 drives the connecting strip plate 8 to move, thereby causing the return tension spring 13 to be stretched, and in the above process, the movement of the connecting strip plate 8 drives the movement of the supporting block 11, and the movement of the supporting block 11 drives the contact with the inclined plate 14 and the transmission rack 15, causing the transmission rack 15 to move, and the movement of the transmission rack 15 drives the movement of the adapter rack 18 through the transmission gear 24, causing the adapter rack 18 to drive the locking insert plate 20 to be pulled out of the limiting teeth 41. It should be noted that at this time, the steel cord body 5 is just tightened, the locking insert plate 20 is just pulled out of the limiting teeth 41, and the marker pen 17 has not yet contacted the recording plate 42 (at this time, the breaking force stretching experiment has not started). Then, the operation handle 33 is twisted to rotate the worm 31 through the transmission box 32, the rotation of the worm 31 drives the rotation of the worm wheel 30, the rotation of the worm wheel 30 drives the rotation of the bearing shaft 29, the rotation of the bearing shaft 29 drives the rotation of the winding wheel 28, and the rotation of the winding wheel 28 performs winding and stretching. Then, under the cooperation of the pulley set, the pull rope 36 drives the movement of the movable box 38, and the movement of the movable box 38 drives the movement of the bearing box 6 through the bearing buckle plate 37. At this time, the bearing box 6 and the connecting strip plate 8 are relatively displaced, until the connecting strip plate 8 and the side wall of the bearing box 6 are in hard contact. At this time, the marker pen 17 is completely stretched out and contacts the recording plate 42, and then the bearing box 6 drives the movement of the connecting strip plate 8 (at this time, the breaking force stretching experiment starts).

[0050] In order to ensure that the bearing box 6 can be reset smoothly after the experiment is completed, the following features are further provided:

[0051] The brake mechanism further comprises a limiting box 22 fixedly arranged on the adapter rack 18 near the locking insert plate 20, a touch insert rod 23 slidably arranged in the limiting box 22, two limiting rods 25 symmetrically arranged on the bearing box 6 away from the second clamping jaw 9, a push horizontal plate 26 elastically and slidably arranged on the two limiting rods 25, and a contact inclined groove 21 opened on each locking insert plate 20, wherein the end of the touch insert rod 23 near the locking insert plate 20 is in contact with the contact inclined groove 21, and the end of the touch insert rod 23 away from the locking insert plate 20 is slidably connected with the push horizontal plate 26.

[0052] In use, the push horizontal plate 26 is pressed to drive the touch insert rod 23 to move, so that the touch insert rod 23 is inserted into the contact inclined groove 21, thereby driving the locking insert plate 20 to retract into the bearing groove, and then the position of the bearing box 6 can be freely moved, so as to facilitate the operator to flexibly change the position of the bearing box 6 on the positioning slide rail 2 in the initial stage of the experiment. Since the touch insert rod 23 is slidably connected with the push horizontal plate 26, when the adapter rack 18 moves, the touch insert rod 23 can freely move on the push horizontal plate 26.

[0053] The working principle of the device is as follows: the operator removes a section of the steel cord body 5 with a welding point, then presses the push horizontal plate 26, so that the locking insert plate 20 is first pulled out of the limiting teeth 41, the bearing box 6 is moved to a suitable position according to the length of the steel cord body 5, and then the two ends of the steel cord body 5 are fixed on the first clamping jaw 4 and the second clamping jaw 9 respectively. The extension actuator on the tension meter 3 drives the first clamping jaw 4 to move, which gradually stretches and tightens the steel cord body 5. In this process, the first clamping jaw 4 drives the second clamping jaw 9 to move a distance through the steel cord body 5, so that the second clamping jaw 9 drives the connecting strip plate 8 to move, thereby causing the reset tension spring 13 to stretch. In the above process, the movement of the connecting strip plate 8 drives the movement of the bearing block 11, which drives the contact inclined plate 14 and the transmission rack 15 to contact, causing the transmission rack 15 to move. The movement of the transmission rack 15 drives the movement of the adapter rack 18 through the transmission gear 24, causing the adapter rack 18 to drive the locking insert plate 20 to be pulled out of the limiting teeth 41. It should be noted that at this time, the steel cord body 5 is just stretched and tightened, the locking insert plate 20 is just pulled out of the limiting teeth 41, and the marker pen 17 has not contacted the recording plate 42 (at this time, the breaking force stretching experiment has not started).

[0054] Afterwards, the twist operation handle 33 drives the worm 31 to rotate through the transmission box 32, the worm 31 drives the worm wheel 30 to rotate, the worm wheel 30 drives the bearing shaft 29 to rotate, the bearing shaft 29 drives the winding wheel 28 to rotate, the winding wheel 28 rotates to wind and stretch, and then under the cooperation of the pulley block, the pull rope 36 pulls the movable box 38 to move, the movable box 38 moves to drive the bearing box 6 to move through the bearing buckle plate 37, at this time, the bearing box 6 and the connecting strip plate 8 are relatively displaced, until the connecting strip plate 8 and the side wall of the bearing box 6 are in hard contact, at this time, the marker pen 17 is completely stretched out and contacts the recording plate 42, then the bearing box 6 drives the connecting strip plate 8 to move together (at this time, the breaking force stretching experiment starts), along with the movement of the bearing box 6, the marker pen 17 draws a straight line of a certain length on the recording plate 42 (it needs to be explained that the length of the straight line drawn by the marker pen 17 on the recording plate 42 is the length of the steel cord body 5 stretched from being tightened to the pull rope being broken, the length of the straight line drawn on the recording plate 42 is measured, and then the data displayed on the tension meter 3 is combined, so that the experimental data can be obtained), until the steel cord body 5 is broken, then the second clamp jaw 9, the connecting strip plate 8 and the supporting block 11 are no longer stretched by the steel cord body 5, then the reset spring 13 resets to drive the supporting block 11 to reset, the supporting block 11 resets to drive the connecting strip plate 8 to reset, when the supporting block 11 resets, the contact inclined plate 14 no longer produces a resisting force with the transmission rack 15, then under the action of the torsional spring, the transmission gear 24 reverses to reset, drives the transmission rack 15 to retract and reset, and the adapter rack 18 extends, the transmission rack 15 resets to make the marker pen 17 away from the recording plate 42, the adapter rack 18 resets to make the locking insert plate 20 reinsert into the limiting teeth 41, so as to facilitate the staff to record the experimental data, through the above device, the staff can quickly perform the breaking force experiment, without complicated experimental steps in the laboratory, the experimental data can be obtained, which is timely and fast, and the experimental cost of the manufacturer is saved to a certain extent.

[0055] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A manual testing device for the breaking force of welded joints in steel cord, characterized in that, Includes a workbench (1), two symmetrically fixed positioning slide rails (2) on the workbench (1), sliding fasteners (7) slidably mounted on each positioning slide rail (2), a carrier box (6) fixedly mounted on the two sliding fasteners (7), a tension gauge (3) fixedly mounted on one side of the carrier box (6) and fixedly connected to the workbench (1), a first gripper (4) fixedly mounted on the tension gauge (3), a connecting strip (8) elastically slidably mounted inside the carrier box (6), a second gripper (9) fixedly mounted on the connecting strip (8), a support vertical plate (39) fixedly mounted on the side of each positioning slide rail (2), and a positioning long box (40) fixedly mounted on the support vertical plate (39). ), a recording plate (42) fixedly installed on the top of the positioning box (40), several limiting teeth (41) evenly spaced along the length of the positioning box (40), two markers (17) and locking plates (20) symmetrically slidably installed in the carrier box (6), a power mechanism for moving the carrier box (6) and a brake mechanism for limiting the movement of the carrier box (6), the power mechanism has a pull output end connected to the carrier box (6), the brake mechanism has a lateral output end, the lateral output end is used to drive the locking plates (20) and markers (17) to extend or retract, and the first gripper (4) and the second gripper (9) are used to clamp the steel cord body (5); The bottom of the carrier box (6) is provided with a limiting groove (10), and a support block (11) is elastically slidably arranged in the limiting groove (10). The support block (11) is fixedly connected to the connecting strip (8). A reset spring (13) is fixedly installed on the inner wall of the carrier box (6) away from the second gripper (9). A mounting hole (12) is opened on the side of the support block (11) near the reset spring (13). One end of the reset spring (13) is fixedly connected to the inner wall of the carrier box (6), and the other end is fixedly connected to the bottom of the mounting hole (12). The braking mechanism also includes two transmission gears (24) symmetrically arranged on both sides of the limiting groove (10), contact ramps (14) fixedly arranged on both sides of the support block (11), transmission racks (15) arranged on both sides of each transmission gear (24) and meshing with the transmission gears (24), and a transition rack (18), a bearing tube (16) fixedly arranged on the side of each transmission rack (15) away from the limiting groove (10), and a bearing groove opened on the side of each transition rack (18) away from the limiting groove (10). The marker pen (17) is elastically slidably arranged in the bearing tube (16), the locking insert (20) is elastically slidably arranged in the bearing groove, and the contact ramps (14) respectively abut against the end of the transmission rack (15) away from the bearing tube (16). The transmission gears (24) are all rotatably connected to the bottom of the bearing box (6) through torsion springs. The transmission rack (15) and the adapter rack (18) are the lateral output ends of the braking mechanism.

2. The manual testing device for breaking force of steel cord welded joints according to claim 1, characterized in that, The power mechanism also includes a wheel frame (27) fixedly mounted on the side of the carrier box (6) away from the second gripper (9), a winding reel (28) rotatably mounted on the wheel frame (27), a pull rope (36) wound on the winding reel (28), a carrier buckle plate (37) fixedly mounted on the carrier box (6), and a movable box (38) fixedly mounted on the carrier buckle plate (37). One end of the pull rope (36) is wound on the winding reel (28), and the other end is connected to the movable box (38).

3. The manual testing device for breaking force of steel cord welded joints according to claim 2, characterized in that, The active box (38) is the pull output end of the power mechanism.

4. The manual breaking force detection device for steel cord welded joints according to claim 1, characterized in that, The power mechanism also includes a support platform (34) located on the side of the support box (6) away from the second gripper (9) and fixed to the worktable (1) and a fixed box (35) fixedly installed on the support platform (34). The fixed box (35) and the movable box (38) are equipped with pulley groups, and the pull rope (36) passes through the pulley group and is wound on the winding wheel (28).

5. A manual testing device for the breaking force of steel cord welded joints according to claim 4, characterized in that, The power mechanism also includes a bearing shaft (29) coaxially fixed on the winding reel (28), a worm gear (30) coaxially fixed on the end of the bearing shaft (29) away from the winding reel (28), a worm (31) rotatably mounted on the worktable (1) via a shaft seat, a transmission box (32) mounted on one end of the worm (31) and fixedly connected to the worktable (1), and an operating handle (33) mounted on the transmission box (32). The transmission box (32) is provided with a reversing bevel gear set. The worm (31) is coaxially fixedly connected to one bevel gear in the transmission box (32), and the operating handle (33) is coaxially fixedly connected to another bevel gear in the transmission box (32). The worm gear (30) meshes with the worm (31).

6. The manual breaking force detection device for steel cord welded joints according to claim 5, characterized in that, The braking mechanism also includes a limiting box (22) fixedly installed on the side of the adapter rack (18) near the locking plate (20), an actuating rod (23) slidably installed in the limiting box (22), two limiting rods (25) symmetrically installed on the side of the bearing box (6) away from the second gripper (9), a levering plate (26) elastically slidably installed on the two limiting rods (25), and an abutting groove (21) opened on each locking plate (20). The end of the actuating rod (23) near the locking plate (20) contacts the abutting groove (21), and the end of the actuating rod (23) away from the locking plate (20) is slidably connected to the levering plate (26).

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